The working principles of a generic balanced armature receiver motor are modelled in this system. The AC/DC electrical and magnetic field model is coupled to the structural deformation of the armature in the motor.
Many applications involve simulating the electromagnetic behavior of relatively thin material in voluminous domains. To save computer memory and processing time, the thin materials can be treated differently by resolving them with 3D...
If an inductor's magnetic material is nonlinear, then the inductance depends on the current passing through it. This model consists of an inductor with a nonlinear magnetic core, where the small-signal inductance is simulated as a...
Permanent magnet bearings are used in turbo machinery, pumps, motors, generators, and flywheel energy storage systems, to mention a few application areas; contactless operation, low maintenance, and the ability to operate without...
The contact impedance boundary condition is meant to approximate a thin layer of material that impedes the flow of current normal to the boundary, but does not introduce any additional conduction path tangential to the boundary. This...
In this example, a fluid carrying several chemical components is pumped into a detector compartment. A wire in the center of the detector is heated through Joule heating, which is supposed to detect changes in density through convective...
The electric shielding boundary condition is meant to approximate a thin layer of highly conductive material that provides an additional current path tangential to a boundary. This example compares the electric shielding boundary...
This is a model of a simple AC coil: a single-turn thick circular copper wire. A parametric study of current distribution, coil inductance and coil resistance is performed for different frequencies. The skin effect becomes increasingly...
A squared billet made of steel is introduced into a coil operating at low frequency. The process is used in order to make the temperature in a section of the billet homogeneous, since it loses energy faster through the edges than...
The principle component of a quadrupole mass spectrometer is the mass filter which is used to filter ions with different charge to mass ratios. The quadrupole mass filter has been well studied over the years, Ref. 1 and the physics and...
